Yahoo alerts users on suspicious state-sponsored hacking attacks

Following other technology giants including Facebook, Twitter, and Google, Yahoo has announced that it will begin alerting users it suspects may have been targeted by a state-sponsored attack. The Internet giant made the announcement in a recent blog post.
Some of the actions that the company suggests users should take immediately include turning on Account Key or Two-Step Verification, choosing a strong and unique password, reviewing recent activity in account settings, and checking account recovery info as well as mail forwarding and reply-to settings.
It’s worth stressing that receiving such a notification from Yahoo doesn’t necessarily mean that your account has been hacked by a state-sponsored actor, just that the company “strongly suspects” that it may have happened. The company refused to share any details on its detection methods for obvious reasons.